Staff Backend Engineer setting technical strategy for Affirm's Deal Reporting team, powering capital partner integrations and loan funding

This Staff-level backend role on Affirm's Deal Reporting team (Remote Spain) owns capital partner integrations and funding automation for every Affirm loan. You'll set year-long technical strategy, build the team's first international presence, and be judged on distributed-systems depth (Python/Kotlin, AWS, MySQL, Kubernetes, Spark) plus the ability to operate ambiguity into a concrete execution plan.

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What this interview tests

Distributed backend systems at scale (Python/Kotlin, AWS, MySQL, Kubernetes)
Spark internals and data processing pipelines
Task orchestration (Airflow/Temporal) for financial integrations
Setting year-long technical strategy and driving cross-team execution plans
Production ownership: on-call, monitoring, playbooks, code/design review standards
Operating with ambiguity across low-level code and large-system architecture